Oil burning stove



J. B. OLSON ,197,244

April 16, 1940.

' OIL BURNING STOVE Filed Jan 2, 1937 2 Sheets-Shes; 2

I Ill I "illliz lNl ENTOR Jomv 5. OLSON val gorn 6y Patented Apr. 16,

PATENT OFFICE.

2.197.244 on. BURNING STOVE John Bpolson, Fort Atkinson, Wis., assignorto James, Manufacturing Company, Fort Atkinson, Wis.

Application January 2, 1937, Serial No. 118,825

3 Claims.

The present invention relates to oil burning stoves particularly thoseused for heating-poultry houses, brooders, barns, and: for home andstore furnaces.

An object of this. invention is to economically burn distillate,kerosene and the like without excessive noise and to provide convenientmeans for regulating and lighting the stove.

A further object of theinvention is to provide convenient means. forcleaning thestoveand means wherebyv accidental over-flow of fuel may bedrained to a safe place.

Another object of theinvention is toprovide a design whereby the variousparts may: be cast without cores and. assembled without machining.

A still further object is toprovide a flame spreader which is. adaptedto prevent an excessively noisy fluttering. flame, such as is common toburners of the class and to provide meansi whereby this spreader may beraised for lighting and cleaning and provide. a reversible support forthis spreader whereby itwill return to its operating position bygravitywhen its supporting member is positioned in one direction, andremain in. its raised. position when its. supporting member is placedinthe other position.

Gil stovesare delicate things: and if not; properly designed frequentlybecome dangerous and wasteful, Generally stated thepresent invention 30has for its objectto eliminate all of the heretofore objectionablefeatures in stoves of' this class.

and in doing so to increase the efiiciency andconvenience of the device.

To these andother useful ends this invention 35 consists of parts andcombinations. thereof or their, equivalentsas set forth and claimed and'shown in the accompanying drawings in which:

Figure l is a front elevation of 'a complete stoveespecially designedfor brooders and the-like, a

Fig. 4 is atop View of the burner asshown in.

Figure 2, the flame spreader being down'in its working position. Fig. isa top. view ofva fraction of the device as shownin Figure 1,illustrating the manner of regulating the air-supply to the burner.

As thus illustrated the burner, drum base ring is designatedby number-III. This ring-is pro- 55. Vided with. a suitable-flangefonthereceptionofa drum H, the drum extending to top plate l2. This plate isconsiderably-larger in diameter than V the drum and an annular ringplate I3 is provided having the same peripheral diameter as plate 12 andbeing adapted on its inner surface I to engage drum H.

An outer drum i4 is'suitably supported by plate i2 and ring I3, thusproviding an outerichamber i5'which surrounds drum II. An opening I6 isprovided on the front side of drum ll thus pro- 10 viding a passagewayfrom drum ll into chamber l5.

On the rear of plate I2 and between drums H and I l; I provide an outletpipe'fll, thus the heating gas will rise from the burner, passintochamber I5 through outlet I6 and then pass around drum H to the outletwhich registers with pipe l1. I provide a conventional, automatic checkdraft [8 in pipe ll, this device being too well known to require furtherdescription.

I provide a burner base which is supplied with suitable supporting legs2|. Base ring lllis supported on spaced brackets 22 thereby providing anair channel 23 havingan inlet as at 24.

A circular flange ring 25 is provided forming an 25 an inner depressionas at 28 forming a seat for burner plate 29;

I provide four, valvesor projections 3! on the under side of plate 29which hug the inner wall of flange 25 and move; over ports 21',whenplate 29 is turned on its support; Thus air may enter at 24, passbetween members l0 and 20 and into the burner through; ports-27; and thequantity of air-admitted to the burner maybe regulated by turningplate29 on its support.

I provide an adjustingsh'aft 35==which extends through an-orifice inplate! Dand having secured thereon, immediately above this plate, a cam36.

Arms 32 and 33 are made integral with" plate 29' and parallel with-eachother and spaceclto' thereby loosely embrace cam 36; thus when the cam46 v V is turned, plate 29- will be revolved on-its seat andprojections3'l will'be caused to more or less close ports 21. I 5

I provide a flame spreader-plate "the=-underside being convex (asindicated), thisplate be- 4 I. These poclrets "extend to the bottom oftheir 56 members whereby when plate 29 is lifted, plate 45 may beremoved; thus member 45 is hingedly mounted and when in the positionshown in Figure 4, may be swung upward and far enough back so it willrest against the walls of drum I0, thus providing convenient means foraccess to the burner for lighting the fire and cleaning the burner orfor observing the flame. a v

It has been noted that some operatorsforget to drop this spreader plate45 after they have completed the cleaning or lighting task, and I haveprovided means for avoiding this difliculty-if the operator so desires,by simply turning member 29 one half way around so arms 46 and M embracecam 36, and when in this position the spreader plate 45 will contact rod35 before'it is in a vertical position and it will therefore fall bygravity when released by the operator.

It will be noted by observing the cutaway section in Figure 4, thatvalve 3| partially closes ports 21 when cam 36 is in the position shownin this figure; therefore by turning the cam to the left or the rightthe. portswill be covered or uncovered.

Member 20 is provided with a central depression or pocket 50 having afeed pipe 5 which is screw threaded into an opening as at 52.

I provide a circumferential trench 53 around pocket 56 the purpose ofwhich is to trap any oil that may overflow the top of pocket 50. Iprovide also a circumferential channel 54, this channel having adepression 55 positioned under pipe 5|. I provide a depression or pocket56 adjacent depression 55, and an orifice 5'! whereby overflow oiltrapped in pocket 55 may flow to pocket 56 whence it may flow to a safeplace through overflow pipe 58. Thus any oil or fuel that may overflowtrench 53, may reach overflow pipe 58.

The outer wall of channel 54 is cut away as at 59 thus to make room forpipe 5!. In the course of time, if I orifice 5! becomes clogged withcarbon or other foreign matter, the oil may accumulate until it reachesopening 59 where it will overflow into pocket 56 and escape throughoverflow pipe 58.

I provide a flange 66, thus forming a shallow channel, the bottom ofwhich intersects the bottom of ports 21; this channel also intersectspocket 56. Thus it will be seen I have provided a central pocket havinga fuel oil inlet, a trench around this pocket which is about on thelevel I provide a bolt 69 having a nut and washer .awhereby sector 68may be turned to the right or left and locked into position. Thus theair inlet adjustment can be made from the outside of the drum. Bolt 69is secured to a lid 10 which forms a cover for an'opening in plate 2 for.access to the burner; thus when the operator desires access to theburner, cover 10 may be swung sidewise'on rod 35 as an axis. If it isfound desirable, this lid may be swung in the.

direction which will open the air ports 21.

It will be noted that the opening plate 29- is somewhat larger than thewall of pocket 50, thus providing an annular passageway H whereby theentering air will surround the gas as it escapes from pocket 50, thusinsuring complete combustion before the mixture passes from under plate45.

To start a fire, member 45 is lifted and the well or pocket 50 is filledwith fuel oil, some ofwhichmay be permitted to flow into trench 53 and abit of "cloth or paper is placed in the well and lighted. The oil isthen permitted to burn "until there will be sufiicient heat in the wallof well 56 to evaporate the fuel oil as it ispermitted to flow into thiswell, and the cloth or paper is then removed as it merely acts as awick. After the burner begins to operate satisfactorily and the airadjustment has been made, flame plate 45 is permitted to drop intoposition and lid 16 moved into position, the supply of oil being thenregulated either by thermostat control or otherwise. Generally, a wickis only necessary when the burner is new or clean, after a few hours usethere is enough rough jagged carbon deposit to act as a wick.

As a matter of convenience, I have disclosed my invention as applied toa brooder stove inclosure. It will be understood that it may be used inany conventional type of inclosure and that many minor detail changes inthe burner may be made without departing from the spirit and scope ofthe invention as recited in the appended claims.

Having thus shown and described my invention, I claim:

l. A fuel oil burner of the class described, comprising a centralopening, spaced air inlet ports below said opening, an annular ringforming a flame opening revolvably mounted in said opening havingdepending flanges each adapted to move over one of said ports when saidannular ring is turned, a flame spreader positioned over said ringopening having a convexed lower surface and being hingedly mounted atone side to said annular ring, a stop rest on the other side of saidspreader cooperating with said hinge to thereby hold the spreader adistance above said ring opening, means on opposite sides of saidannular ring transverse to said hinge each adapted to engage a manuallyoperated device positioned on said burner whereby air adjustments may bemade in either position of said ring.

2. A fuel oil stove of the class described, comprising a drum and aburner in the bottom thereof having a centrally positioned opening,spaced inlet air ports below said opening, an annular ring forming aflame opening revolvably mounted in said opening and having valvesadapted to move across said ports when said ring is turned on itssupport, a spreader plate having a convexed lower side and. beinghingedly mounted at one side to said annular ring and having a stop restcooperating with said hinge to thereby hold said spreader a distanceabovesaid ring opening, an opening in the top of said drum having a lid,means for turning said annular ring which extends through the top ofsaid drum adjacent said drum opening and having an adjustable connectionto said lid whereby when said lid is turned for access to said drum inone direction, additional air will'be supplied to said burner andwhereby when said lid is replaced, the air adjustment will be returnedto normal.

3. A fuel oil stove of'the class described, comof having a top platewith an opening, a number" of spaced air inlet ports adjacent theperiphery of said opening, an annular ring removably mounted in saidopening and forming a smaller opening having valves adapted to moveacross said ports when turned on its mounting, a spreader plate hingedlymounted on and held a distance above said ring, means rotatablysupported on said plate adapted to selectively en- 10 gage either saidhinge or said annular ring on its

